[llvm-bugs] [Bug 42492] New: [PowerPC] segment fault for boosttrap

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Wed Jul 3 01:07:46 PDT 2019


https://bugs.llvm.org/show_bug.cgi?id=42492

            Bug ID: 42492
           Summary: [PowerPC] segment fault for boosttrap
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: PowerPC
          Assignee: unassignedbugs at nondot.org
          Reporter: chenzheng1030 at hotmail.com
                CC: llvm-bugs at lists.llvm.org, nemanja.i.ibm at gmail.com

This is a bug found by buildbot.

http://lab.llvm.org:8011/builders/clang-ppc64le-linux-multistage/builds/10242/steps/build%20stage%202/logs/stdio

reduced case:
cat t.c
```
void HexToIntPair(const char *Buffer, const char *End,
                           long long Pair[2]) {
  for (int i = 0; i < 16 && Buffer != End; i++, Buffer++)
    Pair[1] *= 16;
}
```
With clang built from latest code after rL365000, get segment fault on Powerpc
for above source code.

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